Understanding Hour Angles @ResearchFlatMoon

ResearchFlatMoon | Understanding Hour Angles @ResearchFlatMoon | Uploaded January 2022 | Updated October 2024, 2 hours ago.
In our last video we talked about the Greenwich Hour Angle to Aries and the Sidereal Hour Angle to a star as we learned to find the GP of a star for a circle of equal altitude. This is a table top exercise to show how that is done.

GHA of Star = Greenwich Hour Angle to Aries + Sidereal Hour Angle of the Star. GHA of Star is the Longitude of the GP of the Star.

Latitude of the GP of the Star is the Declination of the Star...

Note, as the earth rotates, the GHA to Aries and the Declination change min by min and second by second. The Sidereal Hour Angle to the star does not change.

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